{"title":"不同平面应变剪切速率下含天然气水合物砂剪切过程图像分析","authors":"Qi Wu, N. Yoshimoto, S. Kajiyama, Y. Nakata","doi":"10.3208/jgssp.v09.cpeg046","DOIUrl":null,"url":null,"abstract":"Natural gas hydrate is an important resource in the future. To get this resource safely and sustainably, the shear rate-dependent behaviors of Toyoura sand with and without hydrate have been studied with a plane strain shear test. By analysis of picture information and PTV technology, it was found that: increasing the shear rate did not significantly change the angle of the hydrate-bearing sediment samples, but it delayed the appearance of the shear band. The large local maximum shear strain of the Toyoura sand with hydrate was more concentrated in the shear band and local volume expansion was more significant with the increase of the shear rate.","PeriodicalId":283909,"journal":{"name":"Japanese Geotechnical Society Special Publication","volume":"117 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2021-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Image analysis of natural gas hydrate-bearing sand during shear with different plane strain shear rate\",\"authors\":\"Qi Wu, N. Yoshimoto, S. Kajiyama, Y. Nakata\",\"doi\":\"10.3208/jgssp.v09.cpeg046\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Natural gas hydrate is an important resource in the future. To get this resource safely and sustainably, the shear rate-dependent behaviors of Toyoura sand with and without hydrate have been studied with a plane strain shear test. By analysis of picture information and PTV technology, it was found that: increasing the shear rate did not significantly change the angle of the hydrate-bearing sediment samples, but it delayed the appearance of the shear band. The large local maximum shear strain of the Toyoura sand with hydrate was more concentrated in the shear band and local volume expansion was more significant with the increase of the shear rate.\",\"PeriodicalId\":283909,\"journal\":{\"name\":\"Japanese Geotechnical Society Special Publication\",\"volume\":\"117 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-10-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Japanese Geotechnical Society Special Publication\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.3208/jgssp.v09.cpeg046\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Japanese Geotechnical Society Special Publication","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3208/jgssp.v09.cpeg046","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Image analysis of natural gas hydrate-bearing sand during shear with different plane strain shear rate
Natural gas hydrate is an important resource in the future. To get this resource safely and sustainably, the shear rate-dependent behaviors of Toyoura sand with and without hydrate have been studied with a plane strain shear test. By analysis of picture information and PTV technology, it was found that: increasing the shear rate did not significantly change the angle of the hydrate-bearing sediment samples, but it delayed the appearance of the shear band. The large local maximum shear strain of the Toyoura sand with hydrate was more concentrated in the shear band and local volume expansion was more significant with the increase of the shear rate.
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